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MailTester.AI

MailTester.AI

Forward an email and get an AI deliverability report in 30s

Website mailtester.ai
Overview

What it is

Stop guessing how your emails perform. MailTester.ai instantly analyzes newsletters, campaigns, or community emails, giving actionable insights to boost engagement, open rates, conversions and saving you hours of guesswork.

Intent

I need it when

Ensure compliance and data privacy while testing email deliverability

The product is EU-hosted in Bratislava with GDPR by default, ISO 27001 certification in progress, automatic data deletion, encryption at rest, and no third-party trackers. Users never expose their subscriber list; only the test email is analyzed.

Test emails from popular creator platforms (Beehiiv, Substack, Kit) without manual setup or technical knowledge

MailTester.AI integrates with Beehiiv, Kit, Substack, Mailchimp, Klaviyo, and Brevo. Users simply paste the test mailbox address into their platform's test-send field, eliminating friction and making deliverability testing accessible to non-technical creators.

Reduce email testing costs by paying only for advanced analysis when needed

MailTester.AI offers unlimited free scoring and verdicts with no card required. Users pay only for AI deep-dives (€4.99 one-time for ~5 or €9.99/month for ~10), making it cost-effective for occasional senders or those who want to try before committing.

Get actionable recommendations to improve email deliverability and inbox placement

The product provides a plain-English score (0-100), placement verdict, and three prioritized fixes (e.g., 'subject emoji trips Gmail's promo filter'). The paid AI deep-dive tier generates rewritten subject lines, body copy, and CTAs in the user's voice, enabling quick iteration before send.

Verify that a newsletter or marketing email will land in the inbox before sending to the full subscriber list

MailTester.AI lets users forward any email to a test mailbox and receive a report showing where it lands (Primary, Promotions, or Spam) across real Gmail, Outlook, and Yahoo inboxes within ~30 seconds. This prevents wasted sends and helps users fix deliverability issues before reaching their audience.

Drop

Not a fit when

  • User needs to validate email address existence or clean subscriber lists (use address-validity tools like ZeroBounce instead)
  • User requires warm-up workflows or seed-list based deliverability obsessive processes (GlockApps/MailReach are better fits)
  • User needs per-address pricing model rather than flat monthly or one-time credit packs
  • User requires US-hosted infrastructure or does not need GDPR compliance by default
  • User sends emails from platforms without a 'send a test' feature or cannot forward to a test mailbox
  • User needs bulk email validation across thousands of addresses in a single operation
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Pricing

Freemium with optional paid AI deep-dives. Free tier includes unlimited scoring and verdict. Paid options: €4.99 one-time for ~5 AI deep-dives (499 credits) or €9.99/month for ~10 AI deep-dives monthly. View pricing